9 Less known Facts about your Heart that you Should not Ignore Your heart beats because of an electrical system known as Cardiac Conduction System. The human heart beats 65 to 70 times in one minute, if you take 67 beats per minute as average, then your heart beats 96,480 times a day. With each beat the heart pumps 60 to 90 millimeters of blood. The ventricles of the heart have thicker muscular walls than atria. Weight of a man’s heart is more than the weight of a woman’s heart. A woman’s heart beats a little bit faster than a man’s heart. The human heart is the first functional organ to develop. It begins beating and pumping blood around day 21 or 22, a mere three weeks after fertilization. The heartbeat we hear is due to the closure of the heart valves. The American Heart Association recommends at least 150 minutes per week of moderate exercise or 75 minutes per week of vigorous exercise in order to improve overall cardiovascular health.